ORIGINAL: Boomerang1
I've used a system for many years that automatically drops the gear in the event of pressure loss.
It doesn't use bleed air, CO2 cartridges, electronic valves, solenoids, extra air tanks or electric motors.
Instead, they use ....... a spring.
http://www.retracts.com/index.htm
John.
TOUCHE !!!!!! Sometimes the obvious is so obvious it is never thought of !!!
I use them myself, never came to mind in this discussion... It's like trying to over engineer a peanut butter and jelly sandwich.
Danno